LED Light Bulbs - A Lamps

What Is an A19 Bulb?

The A19 bulb is the most common household bulb shape, making it an ideal choice for replacing traditional incandescent lamps. Measuring approximately 4.13 inches tall and 2.375 inches wide, the A19 light bulb fits into standard E26 medium base sockets, commonly found in lamps, ceiling fixtures, and general lighting applications.

Thanks to LED technology, A19 LED bulbs now offer up to 85% energy savings and last up to 25 times longer than incandescent bulbs—delivering brighter light with significantly lower power usage.

Key Features That Make A19 LED Bulbs Stand Out

• Color temperatures from 2700K (warm white) to 5000K (daylight)
• Light output from 450 to 1600 lumens, equivalent to 40W–100W incandescent
• Dimmable models compatible with most standard dimmer switches
• Instant-on performance with no warm-up time
• Long lifespan of 15,000 to 25,000 hours

Explore Specialty A19 Bulb Options

• Colored A19 LED bulbs – Perfect for parties, holidays, and accent lighting
• Silver bowl LED bulbs – Designed to reduce glare and diffuse light upward
• 3-way LED light bulbs – Adjustable brightness for table and floor lamps
• High CRI A19 bulbs – Enhanced color accuracy for artwork, retail, and makeup spaces
• GU24 base A19 bulbs – Twist-and-lock base for newer energy-efficient fixtures
• High output LED A-lamps – For applications that require 2000+ lumens

Benefits of Using an A19 LED Bulb

• Significant Energy Savings: Most A19 LEDs use just 9–15 watts to replace 60–100W incandescent bulbs
• Low Heat Output: LEDs stay cooler and reduce AC load
• Reduced Maintenance: Long life means fewer replacements
• Eco-Friendly: Mercury-free and fully recyclable
• Versatile: Available in both residential and commercial-grade options

How to Choose the Right A19 Bulb

• Brightness: A 60W equivalent (~800 lumens) is great for general lighting
• Color Temperature: Use 2700K–3000K for warm, cozy spaces; 4000K–5000K for kitchens, bathrooms, and task areas
• Special Features: Need dimming, 3-way functionality, or specific base types? Browse our wide selection to match your fixture requirements

Installation and Usage Tips

Installing an A19 LED bulb is as easy as screwing it into a standard medium-base socket. For best performance:

• Use in open or ventilated fixtures, unless the bulb is enclosure rated
• Avoid dimming unless the bulb is labeled as dimmable
• Check lumens and kelvins on the label to match your desired brightness and color

Although the initial cost may be higher than incandescent bulbs, A19 LED lights quickly pay for themselves through energy savings and longer lifespan.

Frequently Asked Questions (FAQs)

What is an A19 bulb?

An A19 bulb is a standard household light bulb with a diameter of approximately 2.375 inches and a height of about 4.13 inches. It typically has an E26 medium screw base and is used in most residential lamps and ceiling fixtures.

What’s the difference between A15 and A19 bulbs?

The main difference is size. A15 bulbs are smaller—about 1.875 inches in diameter—and are typically used in appliances, ceiling fans, or tight fixtures. A19 bulbs are slightly larger and more commonly used for general room lighting.